const int pontentioMeterPin = A0;
const int ledPin = 9; 
const int speakerPin = 11;

int potentioVal = 0;  
int ledVal = 0;  
int frequency = 0;

void setup() {
  Serial.begin(9600);
}

void loop() {
  potentioVal = analogRead(pontentioMeterPin);
  ledVal = map(potentioVal, 0, 1023, 0, 255);
  frequency = map(potentioVal, 0, 1023, 100, 1000);
  if (potentioVal >= 512){
    tone(speakerPin, frequency);
  } else {
    noTone(speakerPin);
  }
  analogWrite(ledPin, ledVal);
  delay(2);
}